Location: I-25 and Colfax Ave, Denver I-25 uses the ExpressToll HOT system, usable with your E-470 transponder Location: I-25 and Colfax Ave, Denver 1.5 miles until junction I-70, where US-6 and US-85 will split from I-25/US-87 and join I-70 Location: I-25 and Park Ave, Denver Junction I-70 coming up in 1 mile, with Limon probably … Continue reading U.S. Route 85, I-70 Bus/US-40/US-287 to I-25/I-70/US-87